Lin Yiyi

Biodata

Feature	Information
Name	Lin Yiyi (林煜一)
Alias(es)	Traveler; Daoist Lin
Species/Race	Human
Gender	Male
Occupation/Role	Daoist priest, funeral-rite practitioner, interdimensional Traveler
First Appearance	Chapter 1 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Teyvat App: Invitation Authority	3	Discovers the Teyvat app and gains the ability to open rifts to invite characters from his game data into his world.
Teyvat App: Return Function	4	Learns that invited characters can be sent back to Teyvat through the app.
Teyvat App: Self-Invitation Return Route	35	Invites his own Traveler avatar, Lumine, while in Teyvat; the resulting rift establishes that he can return to his home world independently.
Teyvat App: Inventory and Teleportation Access	35	An update permits use of in-game weapons, artifacts, food, and stored items, while granting access to Teyvat's teleport waypoints and other mapped locations.
Armed Teyvat Combat	47	Draws a purple longsword from his phone and defeats Hilichurls with swordsmanship and a lightning-infused attack.

Background / History

Lin Yiyi lost both parents and was later taken in by an elderly Daoist priest, who raised him. After his master's death, Lin personally buried the master's ashes at Nanshan Cemetery. 20 22

He works in funeral rites despite his young age, caring for the dying, conducting ceremonies, and guiding spirits onward. His repeated exposure to death has left him outwardly numb to farewells, though he still makes an effort to comfort grieving families and help the dead find peace. 1 19

A veteran Genshin Impact player, Lin possesses a full C6R5 roster. During a game update, he discovers a second application called Teyvat, which gives him access to his character roster and the ability to invite its inhabitants across dimensions. 1 3

Appearance

Lin commonly dresses as a modern young man, but his appearance changes with his duties and travels between worlds. 1 19

• Often wears a cowboy hat. 1 32
• Uses a recognizable trench coat while working outside. 7
• Wears a loose yellow Daoist robe bearing a Taiji symbol during funeral rites. 19
• Is shorter than Zhongli but taller than Xiao. 9 37

Personality

Lin is reserved, socially anxious, and often avoids eye contact when confronted with kindness or emotionally perceptive people. He initially sees the modern world through its greed, resentment, and cruelty, having encountered much of humanity's pain through funeral work and restless spirits. 4 5 9

Despite this pessimism, he is consistently compassionate. He helps strangers threatened by ghosts, defends students from bullies, advises Chen Yue and her mother to reconcile, and comforts fans struggling under personal pressure. 7 11 14 17

His time with the people of Teyvat gradually makes him more open and willing to connect with others. He is also resourceful under pressure, frequently concealing his companions' identities as “cosplayers” while teaching them how to navigate modern life. 10 18 44

Abilities & Skills

Daoist Arts and Exorcism

Lin is a trained Daoist practitioner capable of sensing, confronting, and resolving supernatural threats. 12 14 27

• Uses talismans and a bagua mirror to defend against hostile ghosts. 12
• Uses rootless water to revive Chen Yue after she collapses. 14
• Conducts rites to remove possessing spirits and guide the departed onward. 15 28 43
• Creates Purification Talismans to suppress evil energy and assist in exorcisms. 37
• Detects resentment and unnatural spiritual presences, including the haunted hotel room in Room 1313. 27
• Practices daily meditation to regulate his emotions and cultivate spiritual power. 28

Dimensional Travel

Through the Teyvat app, Lin can cross between his world and Teyvat and transport others across the same boundary. 3 35

• Invites playable characters from his game roster into his world. 3 8
• Returns invited characters to their original locations in Teyvat. 4 20
• Can create a return rift from Teyvat by inviting his own Traveler avatar. 35
• Uses the app's inventory to store personal objects and access in-game equipment. 35
• Teleports freely through Teyvat waypoints, unlike ordinary residents who must pay a price to use them. 35 49

Martial Arts

Lin is proficient in several traditional martial arts and relies on technique rather than brute force. 10 11 32

• Uses Wing Chun to defeat aggressors and defend Chen Yue from bullies. 10 11
• Uses Tai Chi to redirect attacks and subdue opponents without seriously injuring them. 32
• Temporarily trades blows with Raiden Ei during a friendly spar through timing, composure, and technical skill. 33
• Displays notable agility, including evading Raiden Shogun's opening sword attacks. 22
• Employs swordsmanship against Hilichurls after gaining access to Teyvat weapons. 47

Mind and Spirit Influence

Lin can affect civilians exposed to supernatural incidents. 30

• Uses his voice to put attacked girls to sleep. 30
• Erases or suppresses their memories of the Hilichurl attack to protect the secrecy of the incident. 30

Divination

Lin practices lesser forms of Daoist divination and spiritual calculation. 29 43

• Uses the Lesser Six Ren to divine minor matters. 29
• Calculates a person's condition through their birth characters and advises methods for strengthening their spiritual “magnetic field.” 43

Equipment / Weapons / Items

• Phone with the Teyvat app — his primary means of opening rifts, summoning companions, teleporting through Teyvat, and accessing inventory items. 3 35
• Daoist talismans — used for protection, purification, sealing spirits, and sending messages. 7 12 37 47
• Bagua mirror — used alongside talismans against a malevolent ghost. 12
• Spirit-sealing gourd — contains the Pen Fairy after its defeat. 43
• Hotel thermos — used to capture and temporarily contain a ghost. 27
• Yellow Daoist robe — ceremonial clothing for funeral rites. 19
• Shogun's Decree — authorization from Ei that allows him to borrow Tenryou Commission troops for the Inazuma festival. 46 47
• Purple longsword — drawn from the Teyvat app for combat in Byakko Plain. 47

Relationships

• Kamisato Ayaka — The first person Lin invites into his world. Her optimism and concern for his well-being help him begin opening up; she later invites him to Inazuma's festival. 3 5 44
• Hu Tao — Fellow funeral professional and close companion. Lin invites her to assist with funeral rites, while she invites him to work at the Wangsheng Funeral Parlor. 8 9 20
• Zhongli — A mentor-like companion who offers Lin guidance about judging the world clearly and works with him during supernatural incidents. 9 12 20
• Raiden Ei — Initially attacks Lin after mistaking his rift for an Abyss intrusion, but later becomes his friend, guest, and sparring partner. 22 24 32 33
• Yae Miko — A playful interdimensional companion who mediates Lin's first encounter with Ei and encourages his travel to Teyvat. 22 24 35
• Xiao — An adeptus Lin respectfully recruits to help address evil spirits in his world. 37
• Furina — A visitor Lin supports after she is shaken by learning of her status as a game character; she later comes to trust him. 38 39 44
• Chen Yue — A student Lin protects from bullies and aids after she is harmed by a ghost connected to burned spirit money. 11 14 15
• Lin's master — The elderly Daoist who raised Lin after his parents' deaths; Lin buries his ashes at Nanshan Cemetery. 20 22

Story Role / Major Arcs

Funeral Work and the Teyvat App

While caring for Xu Nian's dying mother and attending her funeral, Lin encounters the altered Genshin Impact application that eventually becomes the Teyvat app. He tests its power by inviting Kamisato Ayaka into his world. 1 2 3

Ayaka's Visit and Wangsheng Funeral Parlor

Lin introduces Ayaka to modern life and tells her that Teyvat is known in his world as a game. After helping students affected by burned joss paper, he invites Hu Tao and Zhongli to assist with funeral work, ghost-related incidents, and Chen Yue's possession. 4 7 8 12 15

Narukami Visitors and Dimensional Threats

Lin invites Ei and Yae Miko, survives Ei's initial hostility, and helps them adapt to modern society. When Hilichurls emerge in his world, he concludes that someone else may be exploiting dimensional rifts to bring Teyvat's monsters across. 22 24 30

Access to Teyvat

After returning Ei and Yae Miko to Inazuma, Lin enters Teyvat himself and discovers a method of returning home through his Traveler avatar. The app subsequently updates, granting him inventory access and free teleportation across Teyvat. 35

Pen Fairy Incident

Lin investigates Fang Yaya's coma, which was caused by the Pen Fairy ritual. He recruits Xiao, guides Liu Chao and Tian Heng through the investigation, and ultimately seals the Pen Fairy away while helping Fang Yaya recover. 36 37 39 43

Inazuma Festival

Invited by Ayaka, Lin travels to Inazuma and helps expand its festival across Inazuma City. He secures Tenryou Commission troops with the Shogun's Decree, tests his new Teyvat combat capabilities, and joins Ayaka in opening the festival. 44 46 47 49

Notable Quotes

“There are no invincible styles of boxing or martial arts, only people who have not mastered them.” 11

“It's a fairly good world.” 9