Uchi no Kaisha no Chiisai Senpai no Hanashi is a Manga/Manhwa/Manhua in english language, ROMANCE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

-"My senpai from work… is tiny and cute."

Shinozaki is an office worker who is taken care of and coddled by his senior team member Shiori Katase, who is a gorgeous, profoundly kind, loving, and diminutive woman.

Shinozaki certainly hopes that she's not doing it out of duty… but her joy of doing so increasingly exposes her feelings!