Imas Triviaさんのイラストまとめ

1st pic: Matsuri Tokugawa's younger sister
2nd pic: Umi Kousaka's older sister
3rd pic: Hinata Kinoshita's grandma
4th pic: Shiho Kitazawa's mom and younger brother named Riku (they're still hoping their dad will come back.......)

1st pic: Hayato Akiyama's dad and older brother
2nd pic: Kazuki Tsukumo's dad
3rd pic: Kei Tsuzuki's mom
4th pic: Kirio Nekoyanagi's grandparents and cat

1st pic: Ryu Kimura's younger brother and dog named John
2nd pic: Seiji Shingen's niece named Amane (his younger sister's daughter)
3rd & 4th pic: Amehiko Kuzunoha's dad and aunt

1st pic: Hokuto Ijuin's younger sister
2nd pic: Shouta Mitarai's 3 older sisters and mom
3rd pic: Tsubasa Kashiwagi's younger sister and brother
4th pic: Michio Hazama's younger sister

1st pic: Takeru Taiga's younger brother and sister (missing)
2nd pic: Kaoru Sakuraba's older sister (dead)
3rd pic: Minori Watanabe's uncle (dead)
4th pic: Jun Fuyumi's mom (dead)

1st pic: Chris Koron's younger sister and mom
2nd pic: Hayato Akiyama's older brother
3rd & 4th pic: Kyoji Takajo's younger brother named Hotaru, and older (jerk) brother named Kyoichi

1st pic: Miku Maekawa's parents
2nd pic: Chie Sasaki's mom
3rd pic: Mei Izumi's grandma, younger sister, and younger brother
4th pic: Elena Shimabara's parents, grandma, and younger brother

In Miyo Harada's "Drive-in Summer" SR fans speculate her car is a Nissan X-Trail T31

Mofumofuen and Beit's 315 Diner costume is inspired from Ai LIKE Hamburger

In SideM Wakemini, Tsubasa did a reference of Takane ordering ramen from episode 15 of OGmas anime.

Tsubasa mentioned in the original manga he respect Takane as a senpai, which was omitted in the anime version.

Takane's clothes was changed to match her MLTD version.