Tokyo: I took in my ex's twin sister (1-151).

Summary

Sawayama Haruno prepares for a class reunion after a day of work, feeling anxious about the potential conflict between his girlfriend Maki and her sister Mana. Maki, who has been distant from Mana due to past tensions, arrives at the reunion alone, while Mana is already there, seemingly unconcerned. As the reunion begins, the atmosphere is lively, but Maki feels isolated and irritated by the attention Mana receives. Haruno arrives late, creating a moment of tension as classmates observe the dynamic between the three of them.

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