The villain, Kurokawa , usually speaks in hiragana rather than kanji when he is lying. Look for the raw text in Chapter 49. If his speech bubbles are full of simple characters, he is feigning death. If complex kanji appears, he is serious.
Searching for means you are looking for the original Japanese text. This is a double-edged sword: gaishuu isshoku manga chap 49 raw manga welovemanga
To support the original creators, read the official Japanese raws whenever possible through authorized publishing channels or digital storefronts. The villain, Kurokawa , usually speaks in hiragana
Gaishuu Isshoku Chapter 49: The Heat Rises in the Raw Manga Release gaishuu isshoku manga chap 49 raw manga welovemanga