Age at the time: 0 to approx. 4 years old Appearance: A beautiful boy who resembles his mother, Ai, and is praised by everyone around him as "cute." His defining feature is the shining white star highlight in his right eye. Inner Self (Mental Age): A 30-something obstetrician-gynecologist (Gorou Amamiya). He became a baby while retaining all his adult memories and knowledge. CV: Yumi Uchiyama Key Characteristics of Early Childhood 1. An "old-soul baby" on the inside: Even as an infant unable to speak, his mind is entirely that of the adult Gorou. He complains in his head about the taste of baby food. He performs wotagei dance steps perfectly. He engages in "res-ba" (flame wars) on internet forums with adult-level writing skills against antis who bash his mother (Ai). His twin sister Ruby is also a "reincarnated person," and while they kept their past identities hidden from each other, they built a strange cooperative relationship. 2. Debut as a genius child actor (Ages 3-4): He catches the eye of film director Taishi Gotanda and ends up appearing in a movie as a child actor. Because he is an adult inside, he delivers a performance that perfectly understands the "director's intent." During this time, he meets Kana Arima, who was already famous as a genius child actor, and leaves her deeply shocked and discouraged. 3. The tragedy that changed his life: At age 4, his beloved mother, Ai, is stabbed to death in front of him by a stalker who appeared at their home. This incident causes all childlike brightness to vanish from Aqua's heart. Convinced that there is a mastermind (his biological father) behind the incident who leaked the information, Aqua vows to take revenge on his father as his purpose in life, transforming into a cold-blooded avenger.

■ Infancy to Toddlerhood: Prodigy Wotagei Life - Miraculous growth rate: Shortly after birth, she spoke adult language fluently and quickly mastered crawling and dancing with extraordinary physical ability. - Enthusiastic fan of Mom: As a die-hard fan of her mother, the legendary idol Ai Hoshino, she spends her days dedicated to "oshi-katsu" (supporting her favorite) alongside her beloved twin brother Aqua. - Viral internet sensation: During her mother Ai's live performance, she performed sharp "wotagei" moves that were unthinkable for an infant. The cute footage leaked online, drawing massive public attention and making her famous as the "Viral Room Toddler." ■ Elementary School Years: Acting Like a Genius Child Actor - Pretending to be a normal child: To avoid suspicion from adults and school friends, she deliberately hides her high intelligence and perfectly plays the role of a "normal child" in her school life. - Single-minded longing to be an idol: Carrying the dream she absolutely wants to fulfill from her previous life—"to become an idol"—she practices copying Ai's advanced dance moves perfectly, already showing glimpses of her talent as a future star. In her previous life, she was Sarina Tendouji, who could not move her body due to a severe terminal illness. Deeply moved by her new body that can run and dance freely, she follows her beloved mother's footsteps with all her might. This is her happiest, most fulfilling peak period.