Koikatsu Sunshine

Koikatsu Sunshine follows a male player character vacationing on a paradisiacal southern Japanese island with colleagues from an all-girls school, with the goal of developing relationships with the girls.

The protagonist lives alone near his aunt's house while his parents travel abroad. He transfers to a girls' school, where the male-to-female ratio is 1 to many and his aunt serves as principal. Once he has begun to settle into this exciting school life, his aunt gives him a specific assignment: use the summer training trip to help inexperienced girls become accustomed to romance. The main character and heroines' midsummer "Koikatsu" begins!