Shinji Matou fucking explodes in the background
exactly as Illya says. Taiga, Takano, and Eva all share the same Voice Actress.
to explain the joke: this is the reactor part of the Lambda Complex in Half-Life. Lambdadelta (in pink) thinks the complex was named after her. Bernkastel (in black) somewhat explains that Half-Life came out nearly ten years BEFORE Episode 2 of Umineko, "Turn of the Golden Witch", which would mark the debut of Lambdadelta in the series. Bern eventually notices Morgan from Of the Devil just chilling on a bar near the left side of the image. (this is the stupidest fucking thing I've ever made i'm sorry-)
#nezumivastream Fujinee takes the gang to Black Mesa for a field trip, and meets some new friends along the way! Surely this won't go wrong in any way, shape, or form, right? ....right...? (also Lambda found a similarly named reactor/complex... might need to check the ALT text for that one.)