Saki Hiwatari

Book #3: Please Save My Earth

Book #4: Please Save My Earth, Vol. 4

Book #5: Please Save My Earth, Vol. 5

Book #6: Please Save My Earth, Vol. 6

Book #7: Please Save My Earth, Volume 7

Book #1: Tower of the Future, Volume 1

Book #3: Tower of the Future, Volume 3

Book #4: Tower of the Future, Volume 4

Book #6: Tower of the Future

Book #7: Tower of the Future, Volume 7