L-R: Rika Mayama, Ayaka Yasumoto, Aika Hirota, Mirei Hoshina, Rina Matsuno, Kaho Kaboyashi, Riko Nakayama, Hinata Kashigawa

Shiritsu Ebisu Chuugaku 
is 3B Junior team in 3B Junior: Stardust Adventure. It currently has 8 members. They are also known for having somewhat frequent member leavings and joinings. Their Power Song  is  Butterfly Effect.


Rika Mayama - The group leader and #3. She is the one of the most popular singers of the group. Her power is enhanced sight and her 3B Idol form is named Menīaizu (Many Eyes).

Ayaka Yasumoto - A popular member who is #5. She is the "big sister" of the group, even to Rika. Her ability is telekinesis and her 3B Idol form is called Onnakineshi (Girl Kinesis). She is also tomboyish.

Aika Hirota - #6 of the group. She is usually known to be the peppy one. She posseses the power of sound manipulation which has earned her 3B Idol form to be named Ekōhoshi (Echo Star).

Mirei Hoshina - Mirei is #7 and is best known for being the "sweet, innocent girl type" She is smart and reads in her free time. She has the ability to implant emotions and thoughts into one's mind making her one of the strongest members. Her 3B Idol form name is Maindo-Pusshā (Mind Pusher.

Rina Matsuno - She is probably best known for being a former member of the now-defunct group Minitia Bears. She is #9. She possesses space manipulation, a very strong power. Her 3B Idol form is givent he name Warudō-Sheīka (World Shaker).

Hinata Kashiwaga - She is one of the highest sopranos of the group. She is #10 and also one of the youngest members. She is able to generate dark, cosmic power coming from the planet Saturn, and only Saturn strangely. This gives her 3B Idol form the name Kawatte-Dosei (Transformed Saturn).

Kaho Kaboyashi - One of the youngest members and #11. She has the ability of invisibility. She is somewhat shy and quiet. Her 3B Idol form name is Faindowan (Find One).

Riko Nakayama - #12 and the youngest member. She has the ability of aerokinesis meaning she can control wind. She is very cheery and charismatic. Her 3B Idol form name is Kazeskā (Wind Scar).
Ryuugajou Nanana no Maizoukin OP - Butterfly Effect - Shiritsu Ebisu Chuugaku01:31

Ryuugajou Nanana no Maizoukin OP - Butterfly Effect - Shiritsu Ebisu Chuugaku

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