An erot*c battle fantasy of swords and love starts! Lunois Styler, a second sword saint who is an S-rank adventurer, was reunited with his childhood friend, Aine, who has fallen into s*avery. Lunois bought Aine out to save her, but she is fitted with a cursed collar that causes the wearer to “go into heat” once a day⸺? Lunois’ fight to find a way to remove the collar begins now!