[Atelier TODO (Kawai, TODO Kantoku)] [Zenra de Kaji Daikou] Hitozuma Kaseifu-san ga Hikikomori de Motenai Boku ni Yasashiku Shite kureta Vol. 2 Ippaku Futsuka Nama Nakadashi Onsen Ryokou Hen
Anyway, the ending of the original book didn't get retconned, the narrative is saying this is the story of how it will get there eventually, so I guess it got popular enough to expand it since a third book is a possibility, as it ends with Takeshi affirming Yukari isn't some old lady like she sees herself as, but someone he loves, thus he wishes upon a star to be with her forever... then he remembers she is a married woman.
The tone of the book is quite on the cute side despite this being it being the story of an affair, so I wonder if Yukari's husband will be revealed to a shitty person to "justify" the cheating, she is revealed to have some self worth issues here after all.
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