Yui | Nagase Retireyui Tan Your Onakko Assistantyuiitsu Muni No Saikyou Tamer Chapter 21

Here is your guide:

: The first step is to accurately identify the series you're interested in. The mention of "yui nagase" and "saikyou tamer" could be key. Here is your guide: : The first step

The manga (The One and Only Strongest Tamer) follows Kohaku , a tamer who was banished from his home country for being "incompetent" because he couldn't tame standard monsters. In reality, he is the only human capable of taming Phantasmas —mythical, legendary beasts that are invisible to most people. Here is your guide: : The first step