NOTE: Timeline-wise this chapter takes place right after chapter 2, but as it covers the Outdoor School trip (second day) somehow it overlaps with the final events from chapter 1.

SUMMARY: Ok, I give up. There are simply too many secondary and background characters to give a detailed overview for each of them.

During the second day of the outdoor school trip its decided that everyone should be naked to promove the sex practice activities. Besides, the usual groups are mixed up, so most of the characters end up with a different partner to their habitual one.

First scene focus on Mei, which pressed by the resident gyaru with a nasty personality (Kaede, new character) ends up in a group scene. Either the author retconned her story or forgot to add that info before, because it's revealed that she has got a boyfriend in a different school. There's a small spin off series covering that.

The next scenes switch between a new girl from the track and field club who isn't getting enough attention from her usual partner(Tada-san, tanlines) and a character from the previous chapter (Chie, glasses) again having sex in front of her childhood friend.. Both of them partner with virgin boys that until now were just observing the practices, but didn't take part in any activity before.

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Looks like after this one the author has been focusing on other stories and characters, so not sure when/if he will come back to continue this.

Fist part: https://e-hentai.org/g/1756293/1094905e47/
Second part: https://e-hentai.org/g/1756412/7ba887e9b9/
Third part: --> You're here

https://www.pixiv.net/users/12715239/artworks
http://fantia.jp/fanclubs/2083