1: Merman in My Tub The Special Circumstances of My Bathtub

2: Merman in My Tub The Severe Circumstances of My Household Budget

3: Merman in My Tub The Circumstances of Wakasa's Friends: Takasu Edition

4: Merman in My Tub The Circumstances of Wakasa's Friends: Mikuni Edition

5: Merman in My Tub The Halloween Circumstances of My Household

6: Merman in My Tub The Circumstances of My Bubbles

7: Merman in My Tub My Sibling Circumstances

8: Merman in My Tub The Trendy Circumstances of Modern Men

9: Merman in My Tub My Naked Circumstances

10: Merman in My Tub The Circumstances of Wakasa's Friends: Maki Edition

11: Merman in My Tub The Seven Transformations of my Bathtub Circumstances

12: Merman in My Tub The Circumstances of Wakasa Staying Home Alone

13: Merman in My Tub The Circumstances of Wakasa's Employment