Will end with the next volume

BlueMoonTornado said:

It's just an expression that ties to the themes of depression when it comes to the lives of Rei and other characters'. The full proverb is "March comes in like a lion and goes out like a lamb." It refers to how there's unpleasant, unpredictable, and fierce winter weather in March but that it gives way to calmer, good weather by spring. More directly, it just means that things might be bad now, but they'll be better in the future.

manga_senpai said:

i think this was an attempt at a joke and not a literal statement, joking about the fact that although we have a lion in the title, we have yet to witness an actual lion. this could also be referencing umino's previous work, honey & clover, where we see no reference to honey or clover literally in the manga for the most part, instead mostly being present metaphorically, with honey of course alluding to the sweetness of love and the clover the luck aspect of falling in love. HOWEVER, IN THE LITERAL LAST PAGE OF THE FINAL CHAPTER, THE ML GETS A FUCKING HONEY AND CLOVER SANDWICH. So who knows, rei might get a spring lion sandwich