Lesson 1
A, I, U, E, O, KA, KI, KU, KE, KO
Lesson 2
SA, SHI, SU, SE, SO, TA, CHI, TSU, TE, TO
Lesson 3
NA, NI, NU, NE, NO, HA, HI, FU, HE, HO
Lesson 4
MA, MI, MU, ME, MO, YA, YU, YO, WA, WO, N
Lesson 5
RA, RI, RU, RE, RO
Lesson 6
Dakuten and Handakuten
Lesson 7
Dipthongs