The school bell is about to ring - the deafening noise that fills many of the teachers and pupils at the imaginary Ysgol Bro Taf school with dread.
But for S4C viewers hearing the bell on Sunday, 18 March will be like music to their ears as it means a new term of watching the hit drama series Gwaith Cartref (translation: Homework) is set to start.
The second series is eagerly anticipated after series one made such a huge impression last autumn. Authors Roger Williams, Catrin Clarke and Dafydd James have written the second series, filmed by award-winning producers Fiction Factory, largely on location at the former Barry Grammar School for Boys.
Among the characters are Welsh teacher Wyn Rowlands (Richard Ellis), sports teacher Rebecca Matthews (Hannah Daniel), art teacher Sara Harris (Lauren Phillips), drama teacher Nerys Edwards (Catherine Fychan), secretary Gemma Haddon (Siw Hughes), geography teachers Gwen Lloyd (Rhian Morgan) and Dan James (Huw Rhys), and head teacher Rhydian Elis (Rhodri Evan).
Two characters who will be the subject of much speculation are Simon Watkins (Rhys ap Trefor) and Grug Matthews (Rhian Blythe), a couple at a crossroads in their relationship. Who can forget the passionate kiss between Grug and Simon's best friend, Dan, at the end of the last series?
"Their relationship has captured the imagination of the viewers and it's great to be part of such an interesting story in a series with such a creative, talented cast and crew. Simon can be a bit of fool and terribly selfish, but he adores Grug," says 32 year old actor, Rhys ap Trefor.
"Quite a few people have told me that Simon is exactly the same as a teacher they remember at school - someone who always wanted to climb the ladder and crawl to the head teacher. But Simon's not all bad - as we will see in this series."
Actress Rhian Blythe, aged 30, added, "Grug has always been sensible and responsible and has mapped out her life and career very carefully. Marrying Simon and starting a family have always been part of the plan, but her feelings for Dan have made her question what she really wants.
But the big question is what does the future hold for the relationship - and will they get married? I'm not sure what will happen - it's all up in the air."
Both actors are delighted with the response the first series received, especially among young people.
"The feedback's been great, especially on Facebook and Twitter. I've heard that a significant number of viewers are following the series on-line, which suggests that a young audience is enjoying the series," says Rhys, originally from Garndolbenmaen, near Porthmadog, but now living in Cardiff.
Rhian, who is originally from Llandwrog, near Caernarfon adds, "It's nice to hear that so many school pupils are watching. This shows the series has something to offer them and that they are interested in how teachers behave outside the school gates!"