I had a dream that Gura and Ina were playing a game collab but the game was a horror game in disguise/only had 1 horror game part in it.
They were exploring a flooded basement together, the game was cheery before this and the only comment was that it was getting rather claustrophobic in here.
Then they entered one storage room with crates and metal frame shelves where the water was almost all the way up to the ceiling, with just enough space for their heads to hit the ceiling so it allows them to breathe.
However once they both entered the room, they were slowly swimming around close to the ceiling when both of them see a pair of legs that are floating above the water, seeming like it clips through the ceiling so only their feet and shins were visible.
Gura softly mumbled "feet." and looked at Ina while Ina says "I didn't know this was a horror game" as a joke while laughing.
Then as they were swimming past the halfway mark of the room, the lights started to flicker slowly while Ina realizes that the legs were now facing them and changing to face them each time the lights flicker, Ina saying "uuuuh Gura" and Gura replying "What" before realizing and saying "Oh fuck".
Both of them start to grow louder and louder with panicked voices, Ina hyperventilating and Gura repeating "Oh shit- Oh shit-"
Then a loud noise played and sudden horror chase bgm started to play as the lights flicker more and more, the legs getting closer to them with each flicker of the light.
Gura is reduced to constant high-pitched flute noises while Ina yelped whenever a loud sound played as part of the bgm.
They both find an exit in the form of a vent where they had to slowly crawl through a maze of ventilation space to go up and out of the basement.
As they entered the vents, Gura's flute noises gained an echo and echoed all throughout the vents (Probably proximity chat like We Were Here Too).
Ina was the first one to enter and has grown quiet in pure flight response. Only hearing Gura's flute grow more frantic further and further behind her, probably getting lost in the maze.
Ina then made it out of the vents and took a good 5-7 seconds to calm herself down before she was functional enough to call out "G-Gura?" and you could only hear Gura's whimpers, probably meaning she got caught and died, so proximity chat is now off.
tldr: Another GurIna horror collab with an actual horror game would be really cute and fun.