WARNING!
If U never see BtX and would like to know the story by watching the anime, I suggest U NOT reading this part! It's full of spoilers!
I lost my dictionary! So, I'm sorry if my grammars and structure is very bad! Hixs...I'm sad!

B'T X
1. Episode 1 until episode 4 (FINISH)

2. Episode 5 until episode 8 (FINISH)

3. Episode 9 until episode12 (FINISH)

4. Episode 13 until episode 16 (FINISH)

5. Episode 17 until episode 20 (FINISH)

6. Episode 21 until episode 25 (FINISH)

B'T X Neo
1. Episode 1 until episode 4 (FINISH)

2. Episode 5 until episode 8 (FINISH)

3. Episode 9 until episode 12 (FINISH)

4. Episode 13 until episode 14 (FINISH)