you don't its written in kanji 日本語
When you write sentences in Japanese you will use a mixture of Kanji, Hiragana and Katakana.
hiragana katakana and kanji and furigana which is a mix of hiragana and katakana
If they know the language, then yes. They also "borrow" English words and on occasion write them in English instead of katakana.
In Japanese, if you write foreign names out, you write them with a writing system called Katakana. So, in Katakana, your name would be Jessica: ジェッシカ.
In Katakana "サブタイトル”
You'd write it in katakana: ジョ
You'd write it in katakana: ジェニ
Pooja would be spelled プージャ in Japanese katakana.
Using Katakana: ミカラ=Mikala in Japanese.
エスメラルダ (esumeraruda)
Gert = ガート
Using a mix of Kanji (Chinese native way of writing) Katakana, and Hiragana. They write vertically, going from right to left.
'puroresu' comes from the English language and is taken from 'professional wrestling.' Since it is borrowed from another language, it is written in katakana, like this: プロレス