Isekai Nanpa: Mushoku Hikikomori no Ore ga Skill wo Kushishite Nekoningen ya Shinuchuu Dragon ni Koe wo Kaketemimashita (Light Novel)

Yuuki Yamada, an unemployed 35-year-old shut-in who lives in his childhood room in his parent's house, gets reborn in another world after being crushed by a stack of cardboard boxes at his very first part-time job. There, a sorcerer by the name of Shion tells him, "I want you to use your power to save this world by preventing its destruction." But Yuuki, who's secretly dreamt about wanting to hit on women, suddenly decides to use his all-important bonus of being reincarnated in order to do just that...?!