I can't read this,but I'll guess what happens. Alice and Marisa decided to go to the beach. They go get Reimu and she goes to torture Remilia about being a vampire. Just guessing though...
... in other words, Reimu,Her?I'm really sorry! I can't believe I woke you up, too!She's a demon ...She sure is ...You're telling me to go die, right?Oh, I'm sorry! I guess you won't just get sunburned if you go play in the lake, huh?Well, I guess since it's hot, but ... wait, you're already in your swimsuit!?Alice, too!?Well, why not. Oh, if we're going to the lake, we'll have to invite her, too.Hey, Reimu! It's hot, so let's go swimming in the lake!