Flowers for Algernon

Shiratori Sakuto is 28, but has the intelligence of a 6-year-old boy. He works for Dream Flower Service, a flower distribution centre which provides employment for problem youth. One day, he and a colleague, Yanagawa Ryuichi, delivers a rose bouquet to the apartment building where Mochizuki Haruka lives.

Today is the payday of Dream Flower Service where Shiratori Sakuto (Yamashita Tomohisa) is working. President Takebe's (Hagiwara Masato) policy every month is to hand the salary of Yanagawa (Kubota Masataka), Hiyama (Kudo Asuka) and every employee as cash. As Sakuto receives his salary with a smile, Hiyama inquires, "What will you buy?", Sakuto answers, "I will become smart* and take my license."

The leader of the research team who's making great advancements on intelligence, Hachisuka (Ishimaru Kanji) told Sakuto (Yamashita Tomohisa) "I'll give you magic." After that, the test for Sakuto's suitability started. But with not so favorable results, Hachisuka and his research team's expressions fell.

Finally, Sakuto (Yamashita Tomohisa) was able to receive the operation that will greatly improve his intelligence. Hachisuka (Ishimaru Kanji) and his research team conducts several postoperative tests to inspect his progress but compared to the mouse Algernon who received the same operation, in Sakuto's case, they were not able to verify a big change in terms of displaying a striking effect.

After successfully hitting a homerun, the tests on Sakuto (Yamashita Tomohisa) by Hachisuka (Ishimaru Kanji) continued and the results have steadily made progress. That being said, finally the effects of the operation have appeared. Sakuto who started to recognize becoming smart, felt that the world he has seen is different from what he can see now.

Sakuto (Yamashita Tomohisa) who witnessed the kiss between Haruka (Kuriyama Chiaki) and Hachisuka (Ishimaru Kanji) called Rio (Tanimura Mizuki) and spent the night together. The next day, Haruka who was called by Hachisuka in his office, matches the awkward face of Sakuto.

Hachisuka (Ishimaru Kanji) presented Sakuto (Yamashita Tomohisa) at the academic assembly for his advance intelligence through the medicine "ALG". If this is administered to common people, it addresses that there will be no more things such as discrimination or war but a peaceful society.

Sakuto and Haruka wakes up happily next to each other. Rio's in the hospital. Kawaguchi wonders if this is retribution for him. He relates to Mai that there are lots of incurable diseases but they provide funding to the researches who has a lot of patients inflicted with that disease like cancer or cerebral infarction. He didn't expect this would happen to his daughter. That the researcher that he raised would not pull through in the end. Now he's confused. A knock on the door interrupts him.

As Rio's (Mizuki Tanimura) condition worsens, Yanagawa (Masataka Kubota) and the others visit the research institute to ask Sakito (Tomohisa Yamashita) to find a cure for Rio, but they are turned away by Haruka (Chiaki Kuriyama).

Thanks to Haruka (Chiaki Kuriyama)'s intervention, Sakito learns of Madoka's (Tamiyo Kusakari) true feelings and reconciles with her, then conveys his apologies and gratitude to Takebe (Masato Hagiwara).