Alta is the youngest knight in history and the reincarnation of the legendary "Sword Saint". He is dispatched to the school to protect Iris, the "Sword Saint Princess" who is the next king's candidate, but "Please fight with me seriously", but Iris, who is supposed to be his escort, suddenly challenges him to a fight...!

S-Rank adventurer and second-generation sword saint, Ryunoa Styler, is reunited with his childhood friend, Aine, who has been reduced to slavery.Ryunoa purchases Aine in order to save her, however, she's been given a cursed collar that causes the wearer to go into 'heat' once a day...Ryunoa's battle to find a way to remove the collar starts now!

B-Rank adventurer Rain(♂) had the good luck of finding an Ancient Class item in a dungeon he snuck into.If he sells it, he can have a comfortable retired life!But the joy was brief because due to the item's effects: Rain obtained power equal to that of an S-Rank adventurer and a "Girl's Body"!Furthermore, before he even gets the chance to feel depressed, a certain incident leads to Rain(♀) being invited to [Crimson Heaven], a party with only female members.Will Rain ever be able to return to his original form and take back his peace!?

Shurine, a girl raised for the sole purpose of becoming a bodyguard, is framed by the state and branded a "hitokiri". Following a life on the run, she meets Lutecia, a duke's daughter, aboard a magical train. With Lutecia's life in danger, Shurine offers a solution:"If you need a bodyguard, why not hire me right now?"