Biodata (SunSet website)

• Birthday: 26 Jul
• Blood type: B
• Hometown: Gunma

Info (what fans know)

• Third gen (3ki) member of a girl idol group Sunny Student (SunSeto / SunSet)
• 21 years old when debuted (one of the oldest of 3ki together with Reia)
• Got interested in SunSet after their absolute ace Yoda Michie's graduation concert
• Gained spotlight gradually after showing interesting reactions in variety shows and also mini web dramas
• Uses trendy slangs on variety shows
• Centers a title track 3 years after debuting, the year after that, and centered once again for her graduation single on her 7th year in the group
• Fellow member Iwamoto Reia is her shinme

Info

• In reality, she is Hasegawa Tomi who asked SunSet's agency to manipulate her biodata to hide from people from ES and also stalkers. Her seniors also did the same back then in order to protect themselves
• She didn't legally change her name
• Tomi still wanted to be an idol so she auditioned and used whatever knowledge she gained from her idol school and ES
• Tomi separates her life as Mirei from her life as Tomi so essentially she puts her real self to sleep as long as she becomes Mirei
• She still checks Trickstar and Knights' updates on twitter, made a dump acc to retweet stuff and enter L*wson / 7-*leven RT campaigns

Relationship with Rinne

• After 3 years living in the SunSet dormitory for members, Mirei moved out to a apartment building that's recommended by the agency due to its amazing security
• Rinne lives just right below Mirei's unit and little did they know, their storage rooms have a stair that connects both units to each other
• Their relationship started from being each other's neighbors who sometimes helped each other
• Rinne had a hunch that Mirei's probably Tomi but kept shrugging it off because he got fooled by Mirei's consistency with the made up biodata on SunSet's official website
• Eventually Mirei revealed that she is Tomi but she did it just to gain Rinne's trust so she could use him for her experiments (make him her fake boyfriend slash FWB)
• Got Rinne to agree because she blackmailed him and promised that she'd keep doing things that'd put both their careers at risk (which translates into Gambling according to Rinne's dictionary)
• She wanted to be Yoda's successor, an idol who's extremely great at showing vulnerability to love both on stage and on screen (dramas and movies)
• Rinne isn't really her type, which is why he's perfect for the role of fake boyfriend, because she would need to learn to fall in love with him
• Mainly she controls the relationship, but she's unsure whether she does have Rinne dancing on her palm or Rinne's just simply letting her doing whatever she wants for now
• She plans to ditch Rinne after graduating from SunSet to finally patch things up with Tsukasa (if Tsukasa's not taken already)