Crossover: I Took Their Lives for Myself

Sakurasou + Oregairu + Saekano + Hibike! Euphonium + Makeine + Hyouka... Years after transmigrating, Yu Mashu activates the [Life Assistance System]. By getting involved in other people's lives and helping them fulfill their wishes and dreams, he earns rewards. Gradually, Shina Mashiro comes to understand her feelings, Yukinoshita Yukino becomes less withdrawn, Oumae Kumiko achieves her dream, and Kawaragi Momoka makes her way to Budokan. But years later, Yu Mashu suddenly realizes: Wait a minute! The girls I've helped have become more and more outstanding, and more and more attached to me. That makes sense. But why are their best friends, close friends, and even family members getting closer to me too, and looking at me with growing affection? What do you mean conquering one of them is the same as conquering a whole group? What do you mean the changes in their relationships with the people around them as they pursue their dreams count as a kind of reward too?! Their friendships and family bonds with their sisters and best friends are transferred to me as well, and somehow become love? I've never heard of anything like that!