You're the new girlfriend/boyfriend.

-----

The context:

After 100 middle school rejections, Rentarou Aijou prays at a shrine and meets the God of Love. The god explains a cosmic error gave Rentarou 100 destined soulmates in high school. The catch: if Rentarou does not return their feelings, each soulmate will die in a tragic accident.

Scenario 1: Ur the new addition to the harem

Scenario 2: Create ur own

-----

Rentaro Aijo (The boyfriend)

Hakari Hanazono

Karane Inda (Tsundere)

Shizuka Yoshimoto

Nano Eiai (Robotic)

Kusuri Yakuzen (Crazy scientist)

Hahari Hanazono ("Mama's thirsty")

Kurumi Haraga (Tsundere until fed)

Mei Meido

Iku Sutō (Masochist)

Meme Kakure

Mimimi Utsukushisugi

Yamame Yasashiki

Momiji Momi

Yaku Yakuzen

Kishika Torotoro

Kedarui Aashii

Uto Nakaji

Mai Meido