<!DOCTYPE html>
<html>
<body>
<button id="summonBtn">召喚！</button>
<div id="stage"><p id="count"></p></div>
</body>
</html>
const btn = document.querySelector('#summonBtn');
const stage = document.querySelector('#stage');
btn.addEventListener('click', function() {
const spirit = document.createElement('p');
spirit.textContent = '✨ 精霊が現れた！';
stage.appendChild(spirit);
});