Chapter 2 escalates the tension. A sudden summer thunderstorm knocks out the power in the neighborhood. Mizuho invites Haruki to her house to wait out the storm. Without electricity, the only relief is a cold shower. In a sequence that is more suggestive than explicit (depending on the "hot" version you find), Mizuho nonchalantly suggests they take turns using the outdoor well-water shower.
“Bonding in the Water”
Unlike typical action-focused shounen, this story leans heavily into The keyword "sub hot" in your search tells us that fans are actively seeking subtitled versions of these chapters because the raw, emotional dialogue is as important as the visual storytelling. shounen ga otona ni natta natsu cap 1 2 3 sub hot