Fire Eyes

In manga and anime, sometimes a flame is drawn burning inside a character's eye, even though their eyes aren't actually on fire. This can happen for various reasons:

• The character is burning with excitement or interest.
• They're burning with rage, they're hot-headed.
• They're about to use a skill and the fire eyes just look pretty awesome.
• They have fire-based abilities. Their eyes are actually on fire.

Character: Ikeda Kana 池田華菜
Anime: Saki 咲 (Episode 19)

• Vocabulary
• Examples

Vocabulary

And some related words:

• moeru
  燃える
  To burn.
  • moyasu
    燃やす
    To burn [something]. (ergative verb pair.)
  • moeru
    萌える
    (For a plant) to sprout.
    To feel moe.
• atsui
  熱い
  Hot. (to the touch.)
  • atsui
    暑い
    Hot. (weather.)
    • atsui
      厚い
      Thick.
• atsuku naru
  熱くなる
  To become hot. (literally.)
  To become fervid. (agitated, excited, enraged, etc.)
• hi
  火
  Fire.
  • hi
    日
    The Sun. (the huge ball of fire in the sky.)
    Day. (24 hours.)
  • kazan
    火山
    "Fire-mountain."
    Volcano.
• honoo
  炎
  Flame.
  • honoo-me
    炎目
    Flame eyes.
  • en'en
    炎炎
    Fiery.
  • En'en no Shouboutai
    炎炎ノ消防隊
    Fiery Fire-Brigade. (English title: Fire Force.)

Examples

For reference, some examples of fire eyes in anime:

Character: Shibata Genzou 柴田源蔵
Anime: Hataage! Kemono Michi 旗揚!！けものみち (Episode 8)

• Context: Genzou speaks passionately about one of the two things he cares about: pro-wrestling.

Character: Chidori Kaname 千鳥かなめ
Anime: Full Metal Panic, フルメタル・パニック！ (Episode 3)

• Context: Kaname is angry at boys for being perverts.

Left: Inuzuka Kiba 犬塚キバ
Right: Rock Lee ロック・リー
Anime: Naruto: Shippuden -ナルト- 疾風伝 (Episode 103)

• Context: Rock Lee wants to hear details about something.
• kwsk
  (internet slang.)
  • kuwashiku oshiete
    詳しく教えて
    Teach [me] about [it] in detail.
  • kuwashii
    詳しい
    [Knowing something] in detail.
    Being knowledgeable about [something].

Character: Miyanaga Saki 宮永咲
Anime: Saki 咲 (Episode 19)

• Context: Saki unleashes her special skill: kan 槓.

Left: Riho Flavin リホ・フラビン
Middle: Selen Hemein セレン・ヘムアエン
Right: Phyllo Quinone フィロ・キノン
Anime: Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu You na Monogatari, たとえばラストダンジョン前の村の少年が序盤の街で暮らすような物語 (Episode 10)

• Context: three different characters have three different objectives.
• The one with money eyes seeks money.
• The one with heart eyes seeks love.
• The one with fire eyes seeks battle.