Synopsis
Do you believe objects can carry evil? Or that a simple thing from the past could seal the fate of those close to you? Find out in ‘The Brooch of Forgotten Promises: Shadows in Glass’, a four-episode arc in the Lunar Bridge anime.
Episode 1: The Shard’s Call
Kaito Tsukishima is a calm, serious teen living in a town that worships old ways. Since his sister went missing last spring, Kaito’s only joy is old things—books, coins, shards from the local antique bazaar. Lately, he can’t sleep. Each night brings sharp dreams of broken glass, cold breath on his neck, and the hollow cry of “remember me.” His best friend Emi Morino worries. “You don’t even laugh at dumb jokes,” she sighs. But when Kaito finds a broken green brooch still smeared with mud, things start to slide.
He hides it in his desk. His little brother Shun, ever nosy, sneaks into his room. He picks up the brooch—and glassy blue shadows flicker behind them. “You felt that, right?” Kaito asks, voice shaking. Emi just looks. “I’m freezing,” she says.
Over the next days, strange events stack up. The dog won’t enter the bedroom. Mirrors around Kaito crack one by one. A wrong number calls his phone every midnight. At 2:10 AM on Monday, Shun wakes up mumbling in a lost girl’s voice: “It’s cold inside the water. Come in, hold me….”
Episode 2: Photographs in the Lake
Kaito sinks into books and records, punching in old yearbooks at the school library. He finds a news clip from 30 years back—Nana Ozawa, a local girl, vanished at Black Lake, wearing a green brooch. Emi frowns. “Listen,” she says, tipping her phone to show a blurry old post. “That brooch wasn’t found with her things. They never got closure.”
Next night, Kaito discusses the brooch with Emi. Wind rattles the window while they pore over clues. Suddenly, the moon dips and the light bulbs pop like cheap popcorn. The room chills. A smear appears on the mirror, spelling, “RETURN.” Emi gasps. “If it’s Nana’s, maybe you should try… I don’t know, returning it…?”
Not so easy though—the brooch is hot to the touch. Buried, it leaps back onto Kaito’s desk again and again. The friends try every trick: salt circles, stitches, prayer. By dusk, Shun won’t stop talking to a laugh only he can hear. Even the neighbor’s cat hides under the hallway stairs.
Episode 3: Denial Stains the Water
How would you break a curse made of childish anger and old hurt? Kaito tries interviews, searches, logs. He and Emi seek Nana’s last living friend, Ippei Wada, now a pale drunk shuffling around the station. “That day,” Ippei says, shaking, “the brooch cracked in two when Nana fell. I told her we’d patch it. I forgot her. She never left. She’s cold. So cold….”
Real fear sets in as Kaito realizes Nana’s pain throws shadows not just at him, but at Emi and Shun too. The town’s old blackout spots seem to pull him forward each afternoon. Shun begins sketching the Black Lake garage in wide, flat, black crayon. Kaito finds their old family photos warped with a slick green shade over the eyes.
Kaito attempts a midnight return under rainy dark. Green light shivers off the lake, and the air grows thick and oily. Just as he drops the brooch on the dock, Shun almost slips into deep water with outstretched hands, mumbling, “Now I see you.”
Episode 4: Glare of Mourning Glass
Rescue comes fast—Emi pulls Shun back with a loud yell and a hurl of her yellow backpack. The music quivers silent. Kaito locks eyes with old shapes moving beneath the glassy surface. In a snapped second, a voice sighs, “Stay with me.” Do you give the restless past peace—or lock it deeper still?
They press on and speak Nana’s name at dawn, holding up Ippei’s faded patch and an old songbook. The sun glints off the water, scattering the green stains away. Kaito places the brooch on the shore, chips and all, layered over a letter: “I will not forget you.” Shun, silent these days, mouths the same:
“Don’t forget….”
This time, no voices echo. Yet in the last shot, a thin green shadow trails after Kaito down the school path.
The past can let go. But maybe, not fully. Would you sleep soundly after all that?
