(Ch.1-2) Subaru is a lower ranking ninja who hasn't been cleared for missions, but it's finally time, and he's been given the mission to seduce a target, with his training coming directly from the boss Yuuzuki. But as he and the boss train in the art of love, Subaru realizes that he doesn't want to do these things with any other man. The second chapter has them trying cosplay sex. Trigger warning: feels like statutory rape.
(Ch.3-4) Asagi and Hiiragi are ninja partners on a mission, but while Asagi is loyal to the mission, Hiiragi insists he's loyal to Asagi. When Hiiragi is injured during the mission, Asagi realizes his real feelings run deeper, and the two cross the line. No trigger warnings
(Ch.5-6) Futaba was hiking in the snow and slipped, and next thing he knows, he woke up in bed naked with a "snow man." The snow spirit Miyuki saved Futaba's life by sleeping with him, transforming him into a snow spirit that can no longer feel cold, and at first Futaba is troubled by both the fact that Miyuki slept with him and his new life, but he starts to think it might not be so bad to stay beside Miyuki. The next chapter shows their "long distance" relationship struggles during the summer months. Trigger warning: rape/somnophilia (not shown).
Shinobu Kokoro wa