Funny Faces in High School Episode 12: The Century's Proven Intramural Marathon Victory Methods!!

Chie and Yui walk through their old neighborhood, a construction detour forcing them onto a familiar, forgotten path. They rediscover childhood landmarks, noting how their youthful perspectives magnified everything. The park seems smaller, the yellow dinosaur slide less imposing, prompting reflections on their own growth. The experience highlights the deceptive nature of memory, how scale and perception shift with age.

On the school rooftop, Chie and Yui share their nostalgic walk with the Kimengumi. Rei insists on an enormous red-fruited tree in the park, a detail the others find unbelievable. Go, Mono, and Jin add their own peculiar park memories, from scary 'mouth-split' women to impromptu heroics, making Yui wish she'd been part of those strange moments. Suddenly, Rei shouts, remembering his father filmed his first toddler errand in that very neighborhood, suggesting the video might hold more shared past.

At Ichido's Toy Shop, everyone gathers with Rei's parents, Tasu and Naori. Tasu proudly prepares the DVD player, having meticulously digitized old tapes, hinting at the colorful background characters. Anticipation fills the air, but Tasu accidentally plays a flamboyant swimsuit competition. Naori intervenes, embarrassed, and after a frantic scramble, the correct 'errand' video finally begins.

The home video starts dramatically with a 'My Son! The Trial Errand' title screen. A seven-year-old Rei, already remarkably recognizable, holds his baby brother Kiri as Naori gives him instructions for his mission. Tasu narrates, filming his son's independent journey from a distance. Young Rei walks, reciting his instructions aloud, until a bright red balloon distracts him. He chases it, veering off course and into unexpected adventure.

Lost, young Rei stops at a police box, where he immediately bickers with another lost boy, young Go, about their faces. Their fathers, Tasu and Reitsu's Father, both secretly filming, arrive and amicably collect their sons. Rei continues, passing a girl on a bicycle 'smoking' a chocolate stick. He then sees a man crash out of a liquor store, observed by a young, judgmental Kiyoshi and his father arguing about debts.

Older boys try to extort a 'balloon fee' from young Rei. A middle-school-aged Jin attempts a cool defense but loses his balance and falls flat. Suddenly, an orange-haired young Chie appears, manifesting a 'gorilla-like aura,' scolding the bullies and driving them away with Jin's help. Rei, grateful, calls them 'weird old people.' As he continues, he bumps into a small, pink-haired girl, young Yui, causing them both to fall. They look at each other with identical surprise; this is their very first meeting.

Rei realizes Yui's face is on the balloons he has been chasing. They team up to find her last lost balloon. They encounter a wealthy young Kirara and her eccentric grandmother, who help search using high-tech gear, only to find a balloon-headed young Mono. Mono scares them with his long tongue, so Rei and Yui flee. They spot the real balloon high in a tree and, after a failed attempt by Iwao and friends, gather the Kimengumi boys. They form a human tower, and Rei grabs the balloon, but the tower collapses. Yui trips, accidentally kissing Rei, then cries. To cheer her up, the boys puff out their cheeks, revealing balloon faces, making Yui laugh.

Rei realizes he lost his map, but young Chie correctly identifies the 'Dogwood' flowers he needs to buy. She takes Rei and Yui to her family's flower shop. Yui mentions her painter father, Kyusaku, who soon arrives, as does Rei's father, Tasu. The fathers exchange polite greetings as the children wave goodbye, unaware of their intertwined futures. The video concludes with the Ichido family picnicking under cherry blossoms. Rei and Yui spot each other across the park, sharing a final wave, a perfect, innocent childhood memory.

Back in the present, Tasu and Naori are tearfully nostalgic. The Kimengumi and girls have mixed reactions to the heavy sentimentality. Chie and Yui are amazed they met as toddlers, reflecting on the strange coincidences that forged their deep friendship. The next morning, Yui and Chie walk to school, passing photos from the video. In class, a massive, hand-made aircraft crashes through the wall. The Kimengumi emerge, blaming headwinds. Chie's Sister, from the disciplinary committee, bursts in and drags them away. Yui feels happy, realizing her life is never boring with them, affirming their enduring, eccentric bond.

Outside, the Kimengumi's discarded rocket engine hisses and explodes, covering everyone in soot. Chie sighs, noting their unchanging ways. Yui and Chie then lead a joyful chase through the school halls, with the Kimengumi and disciplinary sister in hot pursuit. The camera pans out from the school building, uniquely shaped like the word 'HIGH,' showing peaceful spring cityscapes and falling cherry blossoms. These images reflect on time's passage and the beauty of their shared environment, concluding with bright light and clouds.