My Stepmother and Stepsisters Aren't Wicked

Thanks to Teru, Miya enrolls at Eihou Girls' Academy alongside Marika and Arisa. Though thrilled to experience school life for the first time, her excitement quickly turns to anxiety when she catches the eye of the school's admired beauty Riru Kazan. Convinced she's somehow offended her, Miya is left bewildered - until Riru unexpectedly appoints her vice leader for their upcoming school excursion.

Miya has settled into life at Eihou Girls' Academy, and meets Koyuki Inari, a classmate who has been absent since the entrance ceremony. Though shy and timid, Koyuki is the eldest daughter of the influential Inari family, whose vast intelligence network earns even Arisa's respect. Drawn to Koyuki's quiet nature, Miya soon discovers she's carrying a secret burden.

Miya's cousin Yaeko visits the Kounokura family with a cake to celebrate Miya passing her written exam. While heading to the terrace with Arisa for tea, Yaeko accidentally bumps into Teru, the intimidating main wife of the Kounokura family. Yaeko panicks and desperately tries to make amends for offending the lady of the household - and impulsively invites Teru to join them for tea…?

It's Parents' Observation Day at Eihou Girls Academy. The teachers nervously welcome the parents, knowing a single complaint could cost them their jobs. Teru charms the mothers before visiting Marika and Arisa's classes. When she arrives at Miya's, curious looks and whispers follow the girl whose unusual circumstances make her a rarity at school. Under Teru's watch, Miya reads her composition.

Student Council President Sadame Mikuriya is respected for her strict adherence to school rules. Though Miya wonders if she is mistaken, the girl she met walking a dog in the park bears a striking resemblance to Sadame. The Student Council reviews a Parents' Day survey on concerns over Miya's enrollment as the child of a mistress - but strangely, none of her classmates' parents have voiced them.

Sports Day has arrived. Sadame and Marika face off in the sprint, while Miya's Aquilegia Team falls behind Team Rindo. Determined to win at any cost, Miya enters the scavenger hunt - only to find Marika and Arisa among the contestants. Despite their efforts, Aquilegia struggles to close the gap. Recharged by Teru's special bento, Miya is ready to give it her all in the afternoon… but then…

During summer break, Teru takes the family to the beach. While Marika and Arisa are excited, Miya feels uneasy because of painful memories from the past. Teru's words help her relax, and she begins to enjoy the sea. There, they run into Riru and student council members Homare and Takiko. The group heads to the Kounokura beach house, where Marika and Arisa soon start bickering again.

Summer vacation is over, and the new school term begins. But Miya is absent, sick with a fever. Riru and Koyuki, along with Arisa and Marika, worry about her. As Arisa remembers the day Miya first came to the Kounokura household, Teru and the others care for Miya at home. Feverish and barely conscious, Miya hears a familiar voice calling her name... Her mother's.