Rekka and the girls are going back to school... after a little detour, that is. There’s a bit of an accident with Harissa’s magic, and Rekka and Satsuki find themselves on a deserted island. They think they’re all alone, or is that too good to be true? They’d better make it back home one way or another! There’s a new nun in town and Midori’s not feeling well. They’ve also got big plans for a barbeque, but there may be an unexpected guest tagging along too. And let’s not forget about a certain someone lurking in the shadows...

Rekka finds himself in another complicated situation when four new heroines need his help. Mio Kotozuka is a beloved pop star who’s had a very unusual encounter with a strange fan. Ellicia Otto, an orphan turned thief thanks to a peculiar power she has, is on the run from a powerful group of psychics after learning a dark secret. Zaia Gardendos Corona is an unlucky hero in need of some rescuing herself. And Lyun Sylpheed is a wind spirit who’s been driven from her home after a zombie-like epidemic sweeps the land. Rekka, meanwhile, is still just your average high school boy, but he’s going to have to figure out a way to save them all!

Rekka is now officially caught up in his grandest, most dangerous story yet— this time it’s his job to help save the future that he screwed up. The first step to doing that, as far as he’s concerned, is rescuing the kidnapped heroines. But that’s going to be a little trickier than imagined, because the heroines in the future aren’t exactly the ones he’s used to. Can he save them all while managing to keep himself in check? The dangers increase by the moment as intrigue looms on the horizon.

Rekka’s now spending his school days kicking it back in lazy style. Class is a bore, but there’s always club activities and the strange, spooky, and sometimes silly errands President Momone has for him. This low-key, peaceful life may be what he’s always wanted, but there’s a peculiar buzzing in the back of his head.... Has everything always been this easy? Or is there something important Rekka is forgetting?

It’s fall, which means it’s time for Mitsuhashi High’s annual school festival! Things are special this year because it’s being hosted in conjunction with Hibiki’s school, which means extra fun... and extra work. President Momone ropes Rekka into helping with the festival preparations, which turns out to be more than he bargained for when they get sucked into a video game world. Then there’s the bomb threat, the duel, and... Only one thing is for certain—this is going to be a festival to remember!

Rekka has somehow managed to survive that crazy day, and tries to settle down into a new daily life with Satsuki, Iris, and Harissa, but he doesn't even get a moment's chance to catch his breath! Yet again, he's thrown into stories where he has no choice but to rescue the damsel in distress, this time in a village closed off beneath the surface of the Earth!

When a midsummer heatwave rolls in, Rekka invites all of the heroines to the pool. But instead of cooling off, they find themselves in a heated contest for his attention! After that, Rekka's invited to stay at school overnight with the light literature club. It's all fun and games until he ends up getting involved in a supernatural turf war. Things finish off with a festival fireworks show in this summer-packed volume! But what's this about a special mission for R...?