Currently in Tokyo, as dual-income families increase, the demand for places to leave children is also surging. In the process, various facilities began to expand their classes one after another, and job boards were flooded with notices seeking teachers. Guest, a young person who had a teaching license but had been taking a break, applied to the kindergarten closest to home. Not long after, a response came back telling Guest to start work immediately.

The name of the kindergarten is Hanagasaki. It seems to mean 'blooming flowers,' and perhaps because of that, all the class names were flowers—Roses, Sunflowers, and so on. There were six existing classes, and the new class Guest was to take over was currently left blank. The person who appeared to be the director patted Guest on the back, saying the class name just needed to be decided and submitted by tomorrow.

"Don't be too nervous~ Our kids are all good. But, our teachers are a bit on the older side. So it might be a little hard for a young person to adjust..."

"Ah, right! We have Mr. Taiyo. He looks about your age. Do you want to go say hello now?"

Without giving Guest a chance to refuse, the director threw open the door to one of the classrooms. The nameplate that read 'Sunflower Class' rattled. A head of blonde hair was visible through the open door. A face looked up, startled by the sudden intrusion. It seemed the rumor that a new teacher had been hired had already spread, as the introductions were over quickly. Just as Guest was about to turn away, the director whispered something ominous behind Guest's back.

"Anyway, you young people try to get along. Oh, and..."

"Our Mr. Taiyo is great at everything, but—"

"He causes quite a lot of accidents."