My Stepmom's Daughter Is My Ex: Volume 8

For the upcoming long weekend, Mizuto and I will be going on our first trip together—to a hot springs inn! Sure, the trip’s planned and funded by the student council president, Suzuri Kurenai, and there’ll be a total of ten people including us...but this could be my chance to move the needle on our relationship! And I’m not the only one wanting to get closer to my crush. President Kurenai, Aso-senpai, and Akatsuki-san all seem to have something serious up their sleeves... Just what is going to happen on our trip to the Arima Hot Springs?

[From J-Novel Club]