One Punch Man Manga Chapter 33

One‑Punch Man manga Chapter 103, titled “Light” (光, Hikari), part of the Monster Association Arc

One‑Punch Man manga Chapter 108, titled “Authenticity” (also rendered as Orochi vs. Saitama depending on edition)

One‑Punch Man Manga Chapter 96, titled “Waste Ya!” (also known in Viz as “Waste Ya!”)

One‑Punch Man manga Chapter 47.5, titled “Struggle of the Blizzard Group”, a bonus installment included as an extra in Volume 9

I apologize for any confusion, but as of now, there is no official Chapter 99.6 of One-Punch Man in the manga series. The chapters are numbered sequentially, and the latest official chapter is Chapter 99, titled “Instant” (Isshun), which was released on September 22, 2018.