Unable to pay of their fathers debt a set of twins is auctioned off at a human market. They were bought by a mysterious blond man who took them to his mansion where they found the disturbing scene of.

After Emperor Gore and the Reptilian empire is defeated, a new enemy, Emperor Burai and his Hyakki empire rises and threatens to take over Earth. Ryoma, Hayato, and newcomer Benkei pilot the new Getter Robo G to save Earth.
(Source: ANN)

Saotome Institute, which is the center of Getter Ray study, was attacked by a mysterious monster. That figure was a huge "Oni", which is a legendary monster. They fought with a prototype Getter Robo against it. However, they noticed a big fault. Manipulating Getter Robo was a burden to the pilot, and the normal person couldn’t stand it. To provide for the next attack, they had to look for the candidates for the pilots.

Compilation of seven pure love stories:

1. Girl's Revolution by IKEYAMADA Go

2. Haru ni Naru Made Matte (Wait Until The Spring Comes) by MINASE Ai
(Also included in 37°C no Boyfriend)

3. Puberty BABY by CHIBA Kozue
To Eri, Kaoru is like a troublesome little brother or a cute puppy. She's been taking care of him for fifteen years since they live in the same apartment. She thought he had no interest in girls but that changes when she catches him with a group of girls and flirting!
(Also included in 7 Genme wa Himitsu)

4. Koidamono by SHIRAISHI Yuki

5. Ore-Sama Housekeeper by ICHIKAWA Shou
(Also included in Ouchi e Kaerou)

6. - HOSHIMORI Yukimo

7. - HATTORI Miki