Arc 4The Swordsmith Village Battles
Lin Guang turned Daki into his ally, helped defeat Gyutaro, and gained new powers before joining the battle against Hantengu in the Swordsmith Village. After Nezuko conquered sunlight and Hantengu fell, Muzan began planning to capture her, while Lin Guang returned to Shinobu and resolved to reunite her with Kanae.
- Lin Guang used the Magical Scissors to sever Daki’s thread, erased and restored her memories, renamed her Lin Mei, and purified Muzan’s cells from her body.
- Lin Guang and Tengen Uzui fought Gyutaro, and Lin Guang beheaded him, and Nezuko cured the poisoned slayers, and Lin Guang collected Gyutaro’s blood before Obanai Iguro arrived.
- Muzan summoned the Upper Ranks and ordered them to find the Ubuyashiki Clan and Blue Spider Lily, while Lin Guang returned home and later visited Tamayo, who discussed his blood’s effects on Nezuko and Rose.
- Lin Guang gained new abilities from his treasure chests, visited the Swordsmith Village, and spent time with Mitsuri Kanroji while his new blade was forged.
- Lin Guang received his pale-purple Nichirin Blade, which turned white in his hands, and joined Tanjiro and Kotetsu in dealing with Yoriichi Type Zero and its ancient blade.
- Gyokko and Hantengu attacked the Swordsmith Village, and Lin Guang fought Hantengu’s clones while Muichiro Tokito was trapped in Gyokko’s Water Prison Pot.
- Lin Guang and Mitsuri fought Zohakuten while Tanjiro, Nezuko, and Genya held off the other clones, and Mitsuri awakened her Demon Slayer Mark.
- Lin Guang found Hantengu’s real body and killed him, then collected his blood, and at dawn, Tanjiro discovered that Nezuko could withstand sunlight.
- Muzan realized Nezuko had conquered the sun and returned to the Infinity Castle to make plans, while Lin Guang comforted Shinobu at the Butterfly Mansion and resolved to reunite her with Kanae.