Three years have passed since Hero Sion sealed Hell's Gate. But demons have appeared again all over the world. The demons are finally reaching the southwest of the central continent, Cheza Village. Touka, a self-indulgent farmer living in the village, struggles to protect his childhood friend Yuna from the demons, but he is unable to do anything. Amid his desperate attempts, Hero Sion appears. He cuts down the demon with a single slash...

In a town they visit on their journey, Touka, Yuna, and Anri meet Kyle, who used to be the Hero's companion. Touka likes him because he is willing to accompany them on their mission to defeat the demons. However, in the night, he witnesses Kyle aiming for Anri's necklace so he can kill Touka. The next day, despite his distrust of Kyle, they arrive at the fort to exterminate the demons. As a result, Touka and the others are surrounded ...

Touka, Yuna, and Anri had run up a debt. They were on their way to the Kingdom of Farom to ask the King for money. On the way, Touka becomes all bones due to a lack of mana. After an audience with the King, he accepts to marry the Princess, Marguerite. He ends up going on a date with Marguerite at the festival two days later. However, behind all of this, a series of mysterious disappearances occur. Furthermore, the shadow of someone is targeting

Together with Marguerite, Touka enjoys the festival. However, he is revealed as a fake Hero. Touka chases after Marguerite, who disappears in shock. He sees Marguerite captured by someone. He tries to save her but ends up in the wrong place. Somehow, he manages to escape, but still, Marguerite is kidnapped. With full determination, he said, "It's the Hero's duty to save the Princess. I will become the real Hero.

Thanks to Touka's quick thinking and Marguerite's "Princess's Etiquette ", the party was able to corner Leland. However, the situation was reversed when a high-ranked demon intervened. Touka is seriously wounded and in a great crisis. At that moment, Marguerite's unintentional action produced a miracle. Receiving her feelings, the revived Touka transforms his holy sword huge and swings it down at the demon...

Thanks to Touka's quick thinking and Marguerite's "Princess's Etiquette ", the party was able to corner Leland. However, the situation was reversed when a high-ranked demon intervened. Touka is seriously wounded and in a great crisis. At that moment, Marguerite's unintentional action produced a miracle. Receiving her feelings, the revived Touka transforms his holy sword huge and swings it down at the demon...

Touka confronts Diego, a necromancer who has joined forces with the demon. The townspeople who have been manipulated also attack him, and although he deals with them by building a wall with his holy sword, he finds himself in a great predicament. Touka shows his great power by saying that he can use the holy sword even though he is not a real hero. His actions, which only bought him time, had a certain "goal" in mind...

Touka and his friends head to Elbania in order to break the demon transformation magic to save Yuna. Yuna's sister, Milly, a self-proclaimed hero joins the party and the journey became lively. However, they fall into a pit in the middle of their journey. Furthermore, They are trapped in a fog that makes it difficult to locate the demons. Touka send Sion with necromancy to go and check their area for safety ...

During her morning exercise, Yuna is approached by Fina and gets informed that they've been invited to Misana's birthday party. A bit unsure of how to do, they asked Cliff and Noir's opinion, leading up to them going together to party. Before that, Yuna has to figure out what present to give.what 由于觉得自己吃太多蛋糕……优奈从早就开始做起熊熊体操，这时菲娜跑来找她。一问之下，优奈才得知先前帮过的贵族少女米莎娜送来了生日派对的邀请函。看了信箱后，优奈才发现自己也收到相同的邀请函。两人找了同样身为贵族的诺雅及克里夫商量后，决定一同前往锡林城。优奈前去挑选了要送米莎的礼物，而菲娜则是遭遇了新的危机…

Yuna and the others received warm welcome at the Farrengram family's place in Sheelin. As the girls were having fun in the days before the party, they are approached by a hostile young noble named Randle. Then, Yuna found out about the complex situation where Sheelin is ruled by two Lords. 抵达锡林的领主法莲格仑家后，优奈等人受到该家族温暖的款待。由于距离生日还有一段时间，优奈、菲娜、诺雅及米莎一同上街享受美食及参观各种店家，度过美好的时光。这时贵族少年兰道尔叫住了一行人。兰道尔摆出居高临下的态度，米莎则是坚强地面对。接着优奈得知了这座城镇有着两个领主家族的麻烦情况。

Touka and Anri encounter Friedrich. He is Anri's older brother that has been separated away. His aim is not revenge, but the overthrow of the ruling class. He prioritises the future of the many over the death of one person. However, Anri chooses the path of saving lives instead of taking them. It is a promise with the Hero. In the midst of the tense atmosphere, Diego suddenly intervenes. He absorbs Adele and becomes more powerful with the power..

"When Touka wakes up, he finds a world he had never seen before. ""Thigh Paradise"" was waiting for him. If he continues onwards, he will no longer be able to turn back to reality and save Yuna. Touka is forced to choose in front of Hero Sion who appears before him. Meanwhile, in the real world, the time is about to run out. Yuna prays. Please just let Touka wake up At that moment, she hears a quiet, thin voice...