1. Reimu <-> Java

2. Marisa <-> C#

3. Youmu <-> Clojure

4. Sanae <-> Scalla

5. Sakuya <-> C++

6. Kanako <-> Python

7. Nitori <-> C

8. Patchouli <-> SQL

9. Miko <-> Go

10. Shiki Eiki <-> Rust

11. Koishi <-> Brainfuck

12. Joon <-> Solidity

13. Keiki <-> GLSL

14. Cirno <-> Scratch

15. Aya <-> Swift

16. Sumireko <-> JavaScript

17. Mouku <-> Erlang

18. Seija <-> Malbodge

19. Shinmyoumaru <-> Lua

20. Raiko <-> Lily Pond

21. Ran <-> R

22. Chen <-> Julia

23. Yukari <-> Fortran

24. Yuyuko<-> COBOL

25. Kutaka <-> Chicken Scheme (the chick is looking very blank and egg)