\listfiles
\documentclass{jarticle}
\usepackage{ecltree,epic,eepic}

\begin{document}

\GapDepth=40pt
\begin{bundle}{師匠}
\chunk{
  \begin{bundle}{熊さん}
  \chunk{小熊}
  \chunk{Teddy}
  \end{bundle}}
\chunk{八さん}
\end{bundle}

\end{document}
