The Spread Shot of Wakasagihime from the world delirious with eternal summer (a Touhou LW original). She shows off her beautiful singing voice in this attack. Wakasagihime loves to sing, and she's really good at it, probably because she's a mermaid. Then again, mermaids supposedly use their songs to sink ships, so perhaps they don't all sound as good as Wakasagihime.

The Focus Shot of Wakasagihime from the world delirious with eternal summer (a Touhou LW original). She gets excited and attacks like a sea dragon. There are so many different kinds of creatures in the sea. There are sea monks, sea bishops, and even sea dragons! You won't see any of them in a freshwater lake. Tropical oceans are a hotbed of biodiversity.

A Spell Card of Wakasagihime from the world delirious with eternal summer (a Touhou LW original). She imitates a terrifying sea dragon in this attack. When Wakasagihime eats the shaved ice Cirno makes for her, she remembers what it was like to swim in a cool ocean (or perhaps it was an estuary). Or does she just imagine it? Youkai live for hundreds, if not thousands, of years, so remembering their past can't be easy. They might even be someone else's memories.

A Spell Card of Wakasagihime from the world delirious with eternal summer (a Touhou LW original). She sings a happy song about a sweet, cold dessert. Humans have caused Japanese smelt (called wakasagi in Japanese) to establish populations all across the globe. Nowadays, they would probably be called an invasive species, but this happened long ago. Japanese smelt are highly adaptable and don't care that much about water quality. They're a pretty amazing fish. They taste amazing, too, and are often given as gifts.

The Last Word of Wakasagihime from the world delirious with eternal summer (a Touhou LW original). She reminisces about the past in this attack. However, it's unknown whether these memories belong to her or her fishy friends. Either way, she can remember living in a place called Kasumi in the Hitachi Province. If she thinks back further, she can remember living in the ocean. However, there are no mirrors in her memories, so she isn't certain whether she was a mermaid back then or just a regular fish. She might have even been a prehistoric fish. She just remembers the crystal clear water around her, teeming with life. That's all she needed. It was beautiful and exciting. She was happy. But she's happy now, too―happy that she gets to play at the beach with her friends.