After Onki (Keichiro Koyama) learned the blood type of Mizai (Rie Misura) from Kururi (Hirohiro Hirasawa), he went to get the household registration information and discovered an unexpected truth.Shocked, Wen Ji asked lawyer Satake whether he was suitable to be a guardian, and Satake said there was no legal problem.Various emotions surged into his heart, and Wen Ji fell into confusion and began to wonder whether to tell Jiuluri about this.

On the other hand, Kururi is worried that Wen Ji is depressed, so he decides to go to the supermarket run by Hikaru (Kimura Raishi)'s father to buy discounted tuna.It suddenly occurred to her that she could make him happy by making the Nanban marinated tuna that Wen Ji saw on a cooking show and said he wanted to eat.While the two of them were cooking together, Wen Ji smiled and praised it as "delicious", and the warmth in his heart gradually returned.However, Kururi sensed the truth from an unexpected place...