Chichi Chichi

is a Japanese 4-panel manga series by Cool-kyō Shinja.

Plot
One day picture book writer, pen name Yorozu Hiraku, is asked by his close online friend, handle Chintarou, if they could room share to attend a nearby university. Although they only knew each other online Hikaru agrees without much thought.

However unbeknownst to Hikaru, albeit the male handle name Chintarou is actually a girl, a very well endowed girl.