SCIENCE FICTION

Ranma and Rella run a small detective agency, until one day they're bumped off after discovering a dark secret! Their lives are saved by some mad scientists, but not without some side-effects...(Source: MU)

After two years of being dormant inside Tsutomu Senkawa, an accidental encounter with their old nemesis violently wakes Birdy up. With Birdy kicking evil's ass once again, the dark secrets of the experiments conducted by the "Agni" corporation are slowly revealed. They seem to be dabbling with human body enhancement, creating what they call "beast men," to combat the alien invasions related to Birdy.(Source: MangaHelpers)

A regular person falls in love with a superhero who protects Earth! In terms of circumstances, ability, experience--they are from two different worlds, but they get to know each other, support each other, and then... A unique love story on a planetary scale now begins!

Altruist manga summary: AYAHIRA Satoru

1. Saiyuuki wo Yomu2. The World Cup 19623. Zou Natsu4. Ka5. Kuma6. Nanten7. Yoru no Garage8. Zou no Sanpou9. Metropolis10. Asagao [Story: Yoshitomo Yoshitomo]11. Maruimono