Ichinashi Kimi

There are four Magic Divisions in the military giant that is the Kingdom of Hiraith. The First Magic Division is the elite of the royal guard, the Second Magic Division is the field combat unit, the Third Magic Division is the research and development organization for magic and magical tools, and the Fourth Magic Division consists of those who have other unique skillsets. Among them, Levi was the most unusual, being a sorcerer incapable of using magic and having nothing he wanted to accomplish. In the midst of his days of mere subsistence and despair, Levi meets Prince Saphir, the 13th prince, who is known as the Moribund Prince. Levi, 16 years old, and 6-year old Saphir...it was a fateful encounter! In a royal palace full of malice, the two of them discover human warmth for the first time...

3 short side story extras following along and after Sayonara Alpha's main story.

At little, Fukuta was bullied for being chubby but at his side was always his beloved Aoi-nii. Now Fukuta doesn't remember the face nor the name of his beloved oni-chan but dreams about him, who was once at his side, while waking up with tears in his eyes...

A high school boy who's always considered himself to be an Alpha finds out that he's in fact an Omega. And his destined partner is a kid?

Toujou Aki lives with his younger step-brother, Saku, who is a university student. Instead of going home to sleep though, Saku will stay out with as many women as possible, to the point of being a man-whore. Aki, on the other hand, harbors a deep hatred for women – enough to make him nauseous being around them. Aki's one secret is that he would do anything for his brother. No matter what it is. However, everything can change in an instant during the silence of three minutes.

People fear lawyer Yuuya due to his strict nature, but his kouhai during his university time, Kanade – currently a NEET – is attached to him. Yuuya initially hated Kanade's unexpected character, but his puppy-like behaviour slowly crept into Yuuya's heart for the first time. However, there's a feeling that Yuuya wants to keep hidden from him…

Pairing: Eren x Levi Levi adopts a lost kid-monster to his family.