Sakiko

Biodata

Feature	Information
Name	Toyokawa Sakiko (祥子)
Alias(es)	“Teacher Da Xiang”; “Customer Service Xiao Xiang”
Gender	Female
Affiliation	Mujica; formerly Crychic
Occupation/Role	High-school student; former customer service representative; musician and organizer for Mujica
Status	Married to Riki; pregnant by the end of the story 332
First Appearance	Chapter 1

Background / History

Sakiko was once part of Crychic alongside Takamatsu Akari, Nagasaki Sose, and Shiina Rikki. After leaving the band amid family and financial troubles, she cut contact with her former bandmates rather than explain her circumstances. She attended Haneoka, studied diligently for scholarships, and worked part-time to support herself. Her early jobs included restaurant service and door-to-door sales before she became a customer service representative, a role that let her avoid being seen by former classmates. 2 224 276

Her family’s decline left her carrying debts and dealing with her father’s harmful behavior, including him taking her part-time earnings. The humiliation, financial pressure, and unresolved Crychic conflict repeatedly pushed her to emotional breaking points. 3 13 224

Sakiko first arrives in Riki’s world after a flash of light while leaving Haneoka Middle School for her customer service job. Initially believing Riki to be a kidnapper, she accepts the truth after he shows her footage of MyGO!!!!! performing in a world where she and Crychic are treated as anime characters. 1 Though she briefly returns to her own world, she and Riki later reunite and become increasingly reliant on one another. 2

After learning more about her possible future, Sakiko chooses to form Mujica rather than abandon music. She insists on overcoming her circumstances through her own effort, accepting Riki’s assistance without surrendering her independence. 16 Mujica’s success eventually allows her to repay her debt and escape the crisis caused by her family. 221 332

Over time, Sakiko reconciles with her former Crychic friends, graduates high school, marries Riki in the Bang Bang world, and becomes pregnant. 199 332

Appearance

Sakiko is a petite, blue-haired girl whose elegant bearing reflects her upbringing as a young lady. She is often described as exceptionally beautiful, with a composed presence that contrasts with the instability of her circumstances. 8 145

• Long blue hair, often noted as striking even in public. 8 57
• Fair complexion and delicate features. 145 238
• Usually wears her Haneoka school uniform during school life. 2
• Wears dark, gothic-style attire for Mujica performances. 305
• Initially below 1.6 meters tall; later grows to approximately 1.63 meters. 305 332

Personality

Sakiko is proud, disciplined, and intensely self-reliant. Even while struggling financially, she prioritizes scholarships, work, and repaying her debts rather than depending entirely on wealthy acquaintances or Riki. Her pride can make her guarded and blunt, particularly when others press her about Crychic or pity her situation. 2 16 58

Beneath her reserved exterior, she is deeply vulnerable. Memories of Crychic, encounters with former classmates, and her family situation can overwhelm her; after becoming separated from Riki between worlds, she falls into despair and attempts to jump from the Sky Tree. Riki’s call stops her and restores her hope. 3 5 21

As she recovers, Sakiko becomes more playful, affectionate, and direct. She enjoys festivals, cooking, teasing Riki, and sharing music with him. She is also protective and jealous when other girls grow close to him, though she gradually learns to accommodate his relationships and prioritize the happiness of people she cares about. 19 28 101 250

Abilities & Skills

Piano Performance

Sakiko is an accomplished pianist whose playing attracts widespread attention online.

• Performs Riki’s original score and uploads the performance to Bilibili. 4
• Her piano video surpasses two million views and earns substantial income. 6
• Wins a piano-duet competition with Riki at an aquarium. 10
• Has practiced her dexterity for more than ten years. 228

Music Direction and Band Leadership

Sakiko is the driving force behind Mujica’s formation and development.

• Chooses to form Mujica despite the risks of her financial and family situation. 16
• Oversees stage flow and pays close attention to rehearsal details. 172
• Leads the group toward successful trial performances and larger Lives. 146 234
• Organizes rest periods when Mujica’s workload becomes excessive. 221
• Pushes toward a Tokyo Dome performance, viewing it as the final step in escaping her past hardships. 280 307

Academic Ability

Sakiko is a diligent student who relies on academic performance to secure scholarships.

• Studies consistently at Haneoka to maintain scholarship eligibility. 2
• Helps explain schoolwork to Akari during group study. 228
• Was previously regarded as an excellent student at Tsukinomori. 248

Cooking and Household Care

Sakiko develops practical domestic skills after losing financial security.

• Learned cooking while working at a family restaurant; her croquettes are among Riki’s favorites. 276
• Cooks meals with Riki and prepares food for guests. 3 329
• Takes charge of Riki’s care when he is ill, including feeding him medicine and notifying others. 33 270

Employment

• Restaurant waitress — Her first job after leaving the Toyokawa family; she quit because the schedule conflicted with study and scholarship needs. 276
• Door-to-door salesperson — Left after encountering a former classmate and feeling humiliated. 224
• Customer service representative — Chosen because it allowed her to work without showing her face; she later resigns to focus on Mujica. 1 150

Relationships

• Riki — Sakiko’s closest companion, eventual husband, and the person who supports her through her financial crisis, family trauma, and cross-world separations. Their relationship develops from wary cohabitation into mutual love, marriage, and plans for a child. 1 21 69 238 332
• Nagasaki Sose — Former Crychic bandmate and friend. Sose’s attempts to restore Crychic initially frustrate Sakiko, and both become rivals over Riki, but they later reconcile and Sose supports Sakiko’s marriage. 2 76 199 332
• Takamatsu Akari — Former Crychic bandmate. Sakiko initially refuses contact with Akari after leaving the band, but eventually welcomes her back and reconciles with her. 2 191 199
• Shiina Rikki — Former Crychic bandmate. Sakiko eventually apologizes to Rikki for the past, beginning their reconciliation. 330
• Mikumura Shioka (Hatsuka) — Sakiko’s childhood friend and a Mujica member. Sakiko values Shioka deeply but feels guilt over concealing her hardships and drawing on Shioka’s feelings for her friends to recruit her. 208 222
• Toyokawa Family / maternal grandmother — Sakiko’s former family. She fears her strict grandmother and is burdened by the family’s collapse, but confronts that fear with Riki’s support. 69
• Sakiko’s father — His actions contribute heavily to Sakiko’s financial and emotional hardship; he steals her earnings and later returns to her old room, distressing her. 13 181

Story Role / Major Arcs

Arrival in Riki’s World

Sakiko appears in Riki’s home and must accept that she has crossed into another world. After seeing footage of Crychic’s former members, she recognizes the reality of her situation and begins trusting Riki. 1

Moving On from Crychic

Determined to become “a completely new person,” Sakiko distances herself from Akari and Sose while struggling with the emotional weight of her past. Her composure finally cracks during a hot-pot dinner with Riki. 2 3

Financial Crisis and Mujica’s Formation

Sakiko works, studies, and pursues music while her family’s collapse and debt threaten to overwhelm her. She chooses to establish Mujica as the path to restoring her life, with Riki serving as a key musical supporter. 13 16 152

Separation Between Worlds

When Sakiko returns to her world without Riki and cannot find him for days, she believes he may never have existed. Her attempt to jump from the Sky Tree is interrupted when Riki finally contacts her by phone. 20 21

Confronting the Toyokawa Family

Sakiko returns to the family villa with Riki to collect her belongings and face her grandmother. The encounter marks an important step in overcoming the fear and dependence tied to her former life. 68 69

Mujica’s Rise

Sakiko guides Mujica through trial shows, demanding rehearsals, major Lives, and eventually the Tokyo Dome project. The band’s growth enables her to repay her debts and finally devote herself to music rather than survival. 146 221 280 307 332

Reconciliation and Marriage

Sakiko rebuilds ties with Crychic’s former members, becomes more open about loving Riki, and accepts a future beyond her past hardships. After graduating, she marries Riki and becomes pregnant. 199 234 332

Notable Quotes

“I had completely let go of the past. I would be a completely new person from now on.” 2

“I still want to form Mujica.” 16

“I won’t fail this time, because Riki is by my side.” 307

“Let’s go home. Because we are... family.” 237

Trivia

• Sakiko and Riki can understand one another despite originally not knowing each other’s language. 2
• Her online piano appearances earn her the nicknames “Teacher Da Xiang” and “Customer Service Xiao Xiang.” 4
• She gives Riki a four-leaf clover bracelet that matches her necklace. 20
• She is not adept with electronics and does not appear to know how to clear browser history. 245
• Her secret album of Riki’s photos and searches about what boys like confirm the depth of her feelings for him. 246