Let’s take a look at the latest developments in the manga series One Punch Man, Chapter 199, summarized below:
1. Tenninto Joins the Battle Between Flashy and Sonic

After defeating Sonic with a lethal attack, Flashy was taken aback when he noticed a barrage of shurikens aimed at him from behind. Shortly thereafter, a group of ninjas appeared with the intention of capturing him.
Flashy realized that they were referencing Tenninto, a renowned ninja squad known for their desire to restore the glory of the shinobi under the leadership of the ninja village.
It is noteworthy that Sonic might get overwhelmed due to the time and place being set for the target, which he had previously agreed upon. However, this detail becomes insignificant because at that moment, Flashy Flash was standing right in front of him.
2. Sonic Still Gets Hit Despite Flash Kick
Just as Tenninto was about to launch an attack, one of their members was caught off guard.
As for Sonic, he was hit by Flashy’s attack, leaving him stunned and disoriented. He realized the presence of Tenninto had spoiled his fun and he even wished to retreat. Flashy was quite pleased as Sonic had exceeded his expectations. Feeling overwhelmed, Tenninto also targeted Sonic.
3. Saitama Doesn’t Encounter Anyone at the Target Location
Saitama once again faced unfortunate luck. Initially, he was teaching Sonic and the ninjas a lesson to avoid causing him trouble. However, upon arriving at the scene, Saitama found no one since the ninjas were currently focused on the target designated by Flashy and Sonic.
From there, Saitama also discovered that Sonic was just as lonely as he was.
4. Sonic and Flashy Face Off Against Tenninto
The battle begins when a member of Tenninto named Gale Wind and Hellfire Flame confronts Flashy. Both were prepared for a clash, but only a few minor obstacles could hinder them. Unfortunately, Flashy anticipated their actions and ensnared both of them in their own shuriken.
Due to their previous failures, the ninjas had to advance, even though they had already become a mere distraction for Flashy and Sonic’s onslaught.
5. Gale Wind and Hellfire Flame Were Captured as Research Subjects to Reverse the Monster Transformation Process
Unlike other ninjas who were being attacked, Flashy’s approach to dealing with Gale Wind and Hellfire Flame was somewhat different. Flashy intended to capture them alive to serve as subjects for reverse engineering their monster transformation process. The reason being that these two ninjas had previously hidden from the monsters, but this time they returned to their original forms successfully.