Was inspired by a Japanese dating sim series by Cocktail Soft (a part of F&C, later F&C FC02). The games are all set around restaurants in the fictional "Pia Carrot" chain, and most of the female characters are waitresses at these restaurants. The individual restaurants in the chain are called "1st", "2nd", etc.

MISTRESS MATERIAL -- OR WILLING WIFE? Eminent doctor Adam Deacon had his life neatly planned: a high-flying career -- and a suitable bride! Then he met Anna, the eldest of the Lacey triplets. Anna was the complete opposite to Adam: unconventional, unpredictable and, to Adam, unbearably provocative! She brought out the wild side he'd never known he had. Adam couldn't deny his craving for Anna, but was desire a good basis for marriage?

From [Shotachan Scanlations](https://www.mangaupdates.com/groups.html?id=6163): Lucas can't help but to oversleep.

In the *Rainbow Butterfly* series: 2. *Nureru Hada ni Chou wa Mau*