Wait I don't get it. Are these private springs or not how were the sisters able to get in. If it was public then it should have been female only so hataki wouldn't have gone in. The only way he could've gone in was if it was the private spring attached to his room so there would be no gender...
Wait towards the end it showed that he started sucking on her AFTER the pacifier fell out in those 2 small panels on the left. Bro actually sucked right from the source lol
This premise had way more potential that what was done with it. Takai was absent for basically most of the story which doesn't make sense since her dynamic is a way more interesting one. her feelings also changed on a switch, it would have made more sense to see more of the change in the earlier...