Te O Tsunagou Yo Vol. 4

Azuki and Daizu Kusunoki are a brother and sister living on a housing estate and more or less raising themselves due to their parents’ busy working situation. Good friends with their next door neighbor and childhood friend who has a crush on Azuki, Chika Tachibana, the siblings’ lives change when a pair of brothers, Ryusei and Mizuki Hiiragi, move in on the other side.
In volume 4, Ichika decides to try confessing her feelings once again while Azuki and Ryusei take a trip to the pool.
Notice: This manga is written in Japanese.