I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too, Vol. 5 (Manga) - Bog

The Ousei Academy field trip begins! Yuuya returns to the real world after completing his training with Luna, where his next task awaits him--the Ousei Academy field trip! Cooking, foraging, fishing...Yuuya's cheat-level survival skills make him the star of the show on this trip. And one by one, the girls in his class begin to notice him more than they did before.