Because the lion (Osora Sato) came to the Komori family, the originally peaceful and peaceful life suddenly became shattered.

Kaoruto (Yagaku Yuya) is awakened by the screams of his younger brother Miruto (Bando Ryuta), who has autism spectrum disorder.When I walked down the stairs, I saw a mess in the living room, where the lion was playing with the beauty.The two men had to be appeased since morning, and the man was uneasy about whether he could continue to foster the lion here.

Not only that, the mobile phone handed over by the lion once again received a message from someone suspected to be his mother.

“Ringing the Bell in Software Paradise”

Although he didn't understand the meaning of the message, Lu Ren decided to take Mei Lu and Shi Zi to the library together.Libraries, bakeries and parks are regular Saturday routes for people from Gu and Meilu.When he arrived at the library, Jinren suddenly realized that a picture book he picked up might contain a location with mysterious information.When we go there, we might be able to meet the lion's mother... thinking this, he coaxed Meiluren into letting him play with the lion, while he hurried to the place indicated by the message.

However, just when he arrived at the designated place, both Gu and JC received calls...