Watashitachi no Kokoro

Watashitachi no Kokoro (私達の心, Our Heart), is a unit created by the 5 outfit tickets I got at the beginning of the game, and the free SSR you get as well.

Members

 * Haruka Amami
 * Minako Satake
 * Kana Yabuki
 * Ritsuko Akizuki

Former members

 * Miki Hoshii (left the group because she didn't get along with everyone)
 * Mizuki Makabe

Backstory
The choir teacher in Haruka's school gave her class an assignment; to try to sing the best!! The choir teacher handpicked each group, and made 3 groups out of the 15 students she had. Minako was very happy; she was good friends with Haruka and Ritsuko. Mizuki was very nervous, as she moved schools recently, and didn't know anyone here. Miki was very tired, and didn't really care about the group.

The choir teacher said that all three teams will be competing for points, which made them really determined to win. Every day, they would be told to perform a song, and to sing the song. At first, they were last place because of Miki being extremely lazy, and not singing her parts. The teacher noticed that, and gave Miki a big fat 0 and detention. Miki didn't really care, as she was used to this.

It looked like the future would be grim for them, but good things would happen. A new transfer student from Kanagawa, Kana Yabuki, was enrolled in choir class. Kana loved to sing, and was known in her hometown. She saw Mizuki again, and they talked about what Mizuki had missed while she was gone. Kana decided to sing, and the whole group was charmed. The choir teacher replaced Miki with Kana, and Miki had to sleep sit on the sidelines.

Eventually, with Kana's singing, their team went from last place to first place. Team Tsumugi was second, and team Subaru was last place. Subaru started disliking Kana after that, as she was very competitive and wanted to be number 1. However, Noriko tells Subaru to calm down, saying that she couldn't be number 1 in everything.

The teacher held a party for the whole choir class, and things went crazy. Noriko brought her motorcycle, Subaru brought her baseball bat, and Ayumu brought Julia to the choir concert. Julia played a very loud guitar solo, while Ayumu was breaking things with karate. Minako brought her cooking; it was so good, Mami snatched a box of her cooking while she wasn't looking. Miki and Anna were sleeping. Kana sings lyrics to Julia's guitar solo, while Hibiki Ganaha was trying to convince everyone she was a vampire, but to no avail. Mizuki was doing some magic tricks, making things disappear with magic. Miya, Azusa, Hinata, Tsumugi, Ritsuko, Mizuki, and Haruka all hid in a corner, away from the party.

Eventually, the party ended. Minako, Ritsuko, and Haruka wanted to continue the group they sung in, and made it into a unit. Kana agreed and wanted to be in the unit as well, but Mizuki said that she was too busy with schoolwork, as she was a very smart honors student.

The songs they sing are covers of other idolmaster songs.

Other teams
Constellation: Subaru Nagayoshi, Hinata Kinoshita, Noriko Fukuda, Azusa Miura, Miya Miyao

Heikatsu Seikatsu: Tsumugi Shiraishi, Anna Mochizuki, Ayumu Maihama, Hibiki Ganaha, Mami Futami

Info
Oldest member: Ritsuko Akizuki (19)

Youngest member: Formerly Miki Hoshii, currently Kana Yabuki

Trivia

 * Haruka was first, Minako second, Mizuki third, Miki fourth and Ritsuko fifth. Unfortunately I wasn't too pleased about Miki so I did my SSR and then pulled a Kana SSR. I instantly replaced Miki with that. I'm not really a big fan of Miki Hoshii, but I'm sure there are people in the world who love Miki. And also, I didn't like the black and gold dress that Miki got in the gacha. However, later on, I got a random Konomi dress drop, and it was the same black and gold dress. I can't replace Konomi with another Kana...
 * Haruka, Mizuki, Miki, and Kana come from Kanagawa. Ritsuko and Minako come from Tokyo.
 * Mizuki and Kana went to the same school, and are good friends.
 * Mizuki had to move because her family found a new job. Kana's family decided to move back to her hometown.

Name origin
The teacher named the groups, so they had no say in it. However, everyone in the group liked the name, so they kept it.