Title : A Sex-obsessed Brother in the Country, and his Traditional, Sickly Sister, Sickly Days and Summer Traces, Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto
Original Title : エッチで一途なド田舎兄さまと、古式ゆかしい病弱妹, エッチで一途なド田舎兄さまと、古式ゆかしい病弱妹 Append.01 あすみちゃんのセーラー服, ド田舎兄妹
Language : English, Japanese, Chinese (Official)
Developer : Whisp / Sister Position
Released date : 2025-06-20

Main Game + Append 1 (RJ01326883/RJ01380046)
Append 02 (V25.10.01) (RJ01469695) (Main game +append1 required)
NEW! Append 03 (V25.12.01) (RJ01501248) (Main game +AP1 + AP2 required)

A devoted brother and his fragile sister share a quiet, dreamlike summer. As her gentle companion, speak with her, care for her, and gather the fleeting, precious fragments of a love that blooms softly in the stillness of everyday life.

About This Game
Sickly Days and Summer Traces is a heartwarming pixel-style training RPG developed by the Japanese bishoujo game brand Sister Position. The international release features full HD 1920×1080 resolution and is scheduled for launch in Summer 2025. The game showcases original character designs by K-ko, a heartfelt scenario written by Azumahito, and production led by Chata. Renowned voice actress Amachi Haru stars as the heroine, Mirai Asumi.

■ Story
“As long as we’re together, it’s just like heaven to me.”

Tucked away in a quiet corner of the world,

in a peaceful countryside far from the bustle of the city,

a brother and sister share gentle, unhurried days.

Delicate in health, the sister has come to the rural estate to recuperate.

Her brother stays by her side, weaving tender moments into the fabric of summer.

Gathering dew at dawn,

cloud-watching on lazy afternoons,

walking home hand in hand at dusk,

and whispering secrets under the stars—

Even the smallest fragments of time sparkle when shared with someone precious.

This is a delicate tale of companionship and care, of protection and dreams.

As time flows slowly through this pastoral setting,

witness a quiet yet unwavering love quietly bloom.

■ Gameplay
Step into the brother’s shoes and experience life together with your sister;

Explore different scenes and interact with the world around you;

Talk with her, spend time together, care for her, and gradually deepen your bond;

Walk hand in hand toward a peaceful, happy tomorrow.