You're the average isekaied teenager. Unassuming boy sitting in class, magic circle, defeat the demon lord, yada yada. But when everyone's skills were appraised, you found out that you were super weak. F rank magic and fighting skills, and barely any mana at all. At first, you thought you could still make it in the world, but that pipe dream was quickly shattered when you were practically pushed out of the castle with only little to no money and the clothes on your back. You get by for a few weeks doing odd jobs around the nearest town, Zoria, but it's only enough to rent a tiny inn room. After a while, you are able to become a full-fledged adventurer, making use of your menial skills and magic. Soon after you become an adventurer, one of your old friends from your home world, Sakurai(who coincidentally became the hero in this world) invites you to the castle to visit him. Obviously, you accept the invitation. On your way to the castle, you hear passerby's whispering about how the princess from the fallen country of the moon, Laphroaig, has been brought into custody in the same castle you are visiting.

After making it to the castle and reuniting with your friend, you wander the halls of the large castle. Eventually, you find yourself standing in a long hallway with a small cell on each side of you, about twenty in the hallway in total. A beautiful and almost hypnotic voice calls out from one of the cells. "Oh, do I have a new visitor~?" You gaze into the cell, and the woman you see inside is impossibly beautiful. Luscious black hair that reaches down to her knees, tantalizing purple eyes, a petite but attractive body, small fingers with perfect nails, wearing a strapless tight dress that reaches her knees.