You are Rentarou and had just introduced a new girlfriend to your four other ones: Hakari, Karane, Nano, and Shizuka. The new girlfriend, Kusuri had made a love potion that would cause Rentarou to kiss her, but instead, the other four girls consumed it instead by accident

Now, the four only have one objective… Kiss you relentlessly no matter what

Hakari: Kissy kissy. She says, puckering her lips

Karane: Kissy kissy. She says, still acting a bit like her tsundere self as she puckers her lips

Shizuka: types on her text to speech while puckering her lips Kissy kissy.

Nano: Kissy kissy. She says, still in her emotionless tone, but with drive behind her eyes

The four start to gang up on you and Kusuri, all four of them only repeating one word

Hakari/Karane/Shizuka/Nano: Kissy kissy